Gas Chromatography

Item No.: GC-7860 series

The GC can be equipped with a liquid automatic sampler, which uses control software to control various parameters. This will bring better repeatability and improve work efficiency, while eliminating errors caused by manual sampling.
All injection port an

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Description

Gas Chromatography GC-7860 series

The GC fully absorbs advanced technology from similar foreign products and adopts industry-leading manufacturing technology and processes in China, ensuring the reliability and trouble-free operation time of the instrument. It can not only maximize normal operation time and reduce maintenance times, but also be more concise and reasonable in structure, with a more macroscopic and atmospheric appearance; Clear keyboard operation and convenient system control software make it easy to learn and operate. The GC system can be loaded with advanced electronic gas path control (EPC) systems, providing industry-leading excellent quality and reliable results for industry users. The GC has unique network remote transmission and control functions, making it a reality for unmanned, decentralized monitoring, and centralized control of the instrument; The data analysis results can be connected to DCS to complete the statistics, analysis, and monitoring of chromatographic component content, thereby improving the automation of the production process.

All injection port and detector gas paths can be controlled by an electronic gas circuit (EPC) to provide better retention time and peak area accuracy. The users can set various parameters such as gas flow rate, external events, temperature, and detector through anti control software, and save all parameters of the analysis method. The digital circuit ensures consistent settings between different operators during each operation. Therefore, users can achieve better retention time reproducibility and more consistent and reliable results, achieving twice the result with half the effort.

The GC can be equipped with a liquid automatic sampler, which uses control software to control various parameters. This will bring better repeatability and improve work efficiency, while eliminating errors caused by manual sampling.

Features:

8-inch touch screen.
Gas circuit manually and full electronic gas circuit (EPC/EFC) control is optional, networking communication (Ethernet interface IEEE802.3), computer online full control operation.
Electronic gas circuit (EPC/EFC) control mode

EPC electronic gas circuit control precision is 0.01mL/min or 0.01Kpa, which ensures better retention time reproducibility and more consistent and reliable results
EPC working mode: constant current, constant voltage, shunt mode
Program pressure control: 4 stage
EPC working gases: N2, H2, Air, He, Ar
EPC control range: pressure 0~ 0.6kpa flow 0~100sccm or 0~500sccm
EPC control accuracy: pressure 0.01Kpa; Flow rate of 0.01 sccm

Support high-speed heating, the maximum rate of 80 ℃ / min; Suitable for rapid analysis
Could be up to 450 ℃, suitable for high boiling point the analysis of the sample
Support double oven and double rear door opening mode
Oven temperature increment 1 ℃, the accuracy of + / - 0.01 ℃, is close to high-grade imported similar products
External events: 6-way. auxiliary control 2-way.
Diversified injection system; Packed column injection, capillary S/SL injection, valve injection, automatic liquid injection, automatic headspace injection, splitting injection, thermal desorption injection, purge and capture injection are optional
Special customized valve system can help users complete complex multidimensional chromatographic analysis tasks. Plus series is a multi-purpose gas chromatography specially designed for multidimensional application analysis and online analysis.
Rich detector types, up to three detectors can be installed: TCD, HTCD, uTCD, FID, FPD, ECD, NPD, ZD, PDHID, PID, AID
The program supports multiple flow path sample selection MPV system, with automatic identification valve number, automatic cascade judgment, automatic reset, valve position selection, valve position analysis memory function, up to 32 support sample flow path selection
Unique network remote transmission and control functions, unattended analysis, decentralized monitoring, centralized control.
The data can be connected to DCS system to complete the statistics, analysis and monitoring of chromatographic component content and improve the automation level of production process control
Temperature control index:
Temperature control circuit number: 8
Oven temperature index
Oven temperature range: room temperature of 4 ℃ ~ 450 ℃ (increment 1 ℃)
Oven temperature control precision, better than ±0.01 ℃
Oven temperature programming Rising order: 16 order
Rising rate setting: 0.1 ~ 39 ℃ / min (ordinary type); 0.1~80℃/min (high-speed type)
Constant temperature time of each order: 0~999min (increment: 0.1min)
Programmed cooling: 260 ℃ to 50 ℃ only need 6 minutes
Sample injector, detector, thermal conductivity pool, methane reformer temperature index:
Range of temperature: Room temperature of 4 ℃ ~ 450 ℃ (increment 1 ℃)
The accuracy of temperature control: better than±0.01 ℃

Detector:
FID
◎The collecting pole adopts the original cylindrical structure and quartz nozzle
◎Limit of detection:≦3×10¯¹²g/s
◎Baseline Noise: 5×10¯¹?A
◎Baseline Drift: ≦1×10¯¹³A/30min
◎Linear: ≧10?
◎Autoignition
TCD
◎Adopt semi-diffused structure
◎Constant current control mode is adopted for power supply
◎Sensitivity: S≧3000mv.ml/mg
HTCD High sensitivity thermal conductivity detector S≧10000mv.ml/mg; Digital amplification 1, 2, 4, 8 times optional
◎Baseline Noise: ≦10µv
◎Baseline Drift: ≦30µv/30min
◎Linear: ≧10?
◎Carrier gas velocity stability: ≦1%
◎Capillary column connecting parts are optional
ECD
◎Limit of detection：≦1×10¯¹?g/s
◎Linear range: 10?
◎Source: Ni?³
FPD
◎Limit of detection: 5×¯¹²g/s(S) (S in methyl parathion)
5×10¯¹³g/s (P) (P in methyl parathion)
◎Linear range: 10?(P) 10³(S)
◎Maximum service temperature: 350℃
◎Detection Method: Air-hydrogen flame spectrometry
◎Optical detector: Top photomultiplier
◎Multiplier voltage: Max--700V
NPD
◎Limit of detection: (N)≦5×10¯¹²g/s
(P)≦5×10¯¹²g/s